Pressure-regulator.



UNITED srnrnsglajrnn'r unieron.,

ROBERT-M. DIXON, 'OF EAST ORANGE, NEW JERSEY, ASSIGNOR y'VCO *ril-IE MsAFn'rY can HEATING a Lisi-.irrite New Jansiir.

ivd. "8154,'s4o.

useul Improvements in Pressure Regula-4 tors, of which the following is a specilication. Myinvention relates to pressure regulators and has lor its object to produce a regulator 'which will be efficient in action and which will automatically close oil' the flow of gas in 4the event of the happening or occurrence of.

any abnormal condition reducing pressure on the low-pressure side of the regulator such as a breakin the pipe or of any contingency.

In the accompanying drawing I have shown` a regulator in which one forni of niy invention is embodied. It will be understood, however, that the regulator niay be variously constructed. The regulator shown in the drawing is oi the type ordinarily known as the Pintsch type. This regulator finds its principal utility in systems of lighting railway cars with gas.

In this drawing I have shown a trans verse sectional view of a regulator,

In the drawing 1 indicates the body casting ofthe regulator provided with an inlet nipple or passage 2, and an outlet nipple or passage 3. The usual diaphragme is provided, to which diaphragm clainps 5 are secured by the clamp bolts 6 and clarnp nuts 7. A suitable link Sis or may be pivoted at one end to the clanip bolt 6 and at the other end to the main lever 9 which is pivoted at 1.0 in the bracket ll and secured to the valve casing le. This valve casing is bored for the reception of a valve 15, which valve works freely in the casing and is adapted to regulate the flow of gas to the regulator, and also to entirely shut oil the iiow in case the conditions becomel abnormal. The valve 15 is or may be carried upon a suitable stein 16, carried by a yoke 16 provided with a suitable knife edge 1Gb and a spring step 16c for the reception o'l a spring 17 which bears against the lower face of the niain lever 9.- A spring I8 is secured near one end of the niain lever 9 and at the other end projects into a spring lanchor 19 ivoted at 19 to the casing and having an ad]ustinent device 19b adapted to be adjusted by screw 3 passing through the casing 3.

v' I`he regulator may be provided with the usual cover 21. The valve casing is shown Speccatrion of Letters Patent. Appiimiion nea sepimber 11.1903. serai No. 172,733.

coi/IPANY, a` co'iiroiafifrion or PRESSURE-REGULATOR.

Patented' 'May 21, ieov.`

as provided with anfeXtensionL/QZ, which passes freely through the inlet nippley and is securely packed byring pac/ling 23 held in place4 on 'the regulator body or casingr in any suitable or desired n-ianner. y is shown as disposed angularlywith respect to the valve casing and is bored or recessed to receive the sieve 25, and screwthreadedlto receive a bushing vby which the sieve is held in place. The gas entering 'through the bushing 26 passes through the angular passage :Zof the extension and the valve casing and thence to the valve ing 14 i's provided with a plurality oi valve seats c-b. (1o-operating with these valve seats are the ends c-d of the valve structure l5. These ends, c-d will for convenience be hereinafter referred to individually as valves, although the entire 'structure is subF stantially a unitary structure. The valve c is adapted to the seat 1l and the valve d is adapted to the seat e.

The operation oit the construction shown is as `follows: W'hen the `parts are in their normal positions the pressure of the gas on` the regulator diaphragm will cause the valve c to regulate the gas pressure after the rnanner of the ordinary Pintsch regulator the gas ressure taking care of its own regulation. Should a pipe break on the low-pressure side, or pressure be otherwise reduced, the tension of the diaphragm upon the lever 9 will be re laXed and the valve structure I5 will descend, bringing the valve d against the seat cutting oil the flow of gas. I have shown a screw 28 tapped into a casing for the purpose of 'raising` the yoke it to start the flow of gas should occasion require it.

As inany changes could be niade in the above construction, and niany apparently widely diiierent embodiments of iny invenv tion niight be niade, without departing from, the scope thereof, i intend that all matters contained in the above description, or shown in the accompanying drawings, shall be interpi'eted as illustrative and not in a liniiting sense.

Having described iny invention, what i claim and desire to secure by Letters Patent l. in a pressure regulatoryin combination,

pressure chamber, a ilegible diaphragm forming one wall thereof, inlet and outlet apertures provided in said pressure chamber, a

hisextensien The valve casv ICO valve chamber .supported in' said inlet aper- .ture and extendlng within said pressure chamber, a member provided with a plurality of valves located in said valve casing'adapted to bev seated upon oppositely disposed seats 4arranged in sald casing', a lever pivoted to said 'valve casing adapted to operate said Valve, a link connecting said lever with said diaphra m, a s ring havingone of its-ends attache to sai lever intermediate its length,

and means operating upon the opposite end of said spring for adjusting the tension therea flexible diaphragm, a gas inlet leading into said chamber, -a gas outletmleading therefrom, a valve adapted to be seated upon a plurality of -loppositely disposed seats in said gas inlet, connecting means between said valve and said diaphragm whereby said diaphragm'under' the influence of the gas pressurecontrgbls the operation of said valve, resilient means connected With-said connecting means adapted to co-act with said diaphragm in the control of said valve, and means extending without said chamber for adjusting the, tension of said spring.

1 ..1 ROBERT M. DIXON.

Witnesses:

` ELMER E. ALLBER,

S. D. E.` MORSE. 

